fix: 修复失败请求筛选兼容旧数据

失败请求筛选同时考虑新旧两种判断方式：
- 新方式：status = "failed"
- 旧方式：status_code >= 400 或 error_message 不为空

frontend/src/views/shared/Usage.vue

@@ -171,7 +171,14 @@ const filteredRecords = computed(() => {
       } else if (filterStatus.value === 'completed') {
         records = records.filter(record => record.status === 'completed')
       } else if (filterStatus.value === 'failed') {
-        records = records.filter(record => record.status === 'failed')
+        // 失败请求需要同时考虑新旧两种判断方式：
+        // 1. 新方式：status = "failed"
+        // 2. 旧方式：status_code >= 400 或 error_message 不为空
+        records = records.filter(record =>
+          record.status === 'failed' ||
+          (record.status_code && record.status_code >= 400) ||
+          record.error_message
+        )
       }
     }
 

src/api/admin/usage/routes.py

@@ -530,9 +530,18 @@ class AdminUsageRecordsAdapter(AdminApiAdapter):
                 query = query.filter(
                     (Usage.status_code >= 400) | (Usage.error_message.isnot(None))
                 )
-            elif self.status in ("pending", "streaming", "completed", "failed"):
+            elif self.status in ("pending", "streaming", "completed"):
                 # 新的状态筛选：直接按 status 字段过滤
                 query = query.filter(Usage.status == self.status)
+            elif self.status == "failed":
+                # 失败请求需要同时考虑新旧两种判断方式：
+                # 1. 新方式：status = "failed"
+                # 2. 旧方式：status_code >= 400 或 error_message 不为空
+                query = query.filter(
+                    (Usage.status == "failed") |
+                    (Usage.status_code >= 400) |
+                    (Usage.error_message.isnot(None))
+                )
             elif self.status == "active":
                 # 活跃请求：pending 或 streaming 状态
                 query = query.filter(Usage.status.in_(["pending", "streaming"]))